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(No Model.)

B. J. MARSTERS.

Windmill.

No. 234,138. Patented Nov. 9,1880.

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UNrrEo STATES PATENT OFFICE.

ENOOH J. MARSTERS, OF STOCKTON, CALIFORNIA.

WINDMILL.

SPECIFICATION forming part of Letters Patent No. 234,138, dated November 9, 1880.

Application filed March 29. 1880. (No model.)

To all whom it may concern:

Be it known that I, ENOOH J. MARSTERS, of Stockton, in the county of San Joaquin and State of Ualifornia,have invented certain new and useful Improvements in Windmills, of which the following is a specification.

This invention consists in the construction and arrangement of the self-regulatin g mech anism, as hereinafter described and claimed.

In the accompanying drawings, in which similar letters of reference indicate like parts, Figure 1 is an elevation of a windmill embodying myimproveinents. Fig. 2 is a top view of the self-regulating mechanism. Fig. 3 is avertical section through the turn-table.

The tail Ais hung or hinged to the turntable by the straps or loop-irons a b, which embrace the cranked hinge-pin B, which is secured in suitable bearings to the turn-table, and the upper end of which passes through eyes in two stay-rods, the outer ends of which are provided with screw threads and nuts. These rods pass through knees or lugs OD. against which the nuts hear when the mill is in use.

The back-stay 0 passes from the hinge-pin B back and through the knee or stud G, which is bolted to an arm of the turn-table. The office of this rod is to hold the crank-pin in any desired position.

The tail-rod D passes from the hinge-pin out to and through the lug D, which is bolted to the tail A. This rod is really the top hinge of the tail, as the weight thereof is mainly borne by it, the upper loop-iron, a, serving mainly to prevent the tail from turning edgewise, and the loop-iron travels to and fro on the hinge-pin B as the tail is moved from its position in line with the shaft S to a position nearly parallel to the face of the wheel. The tail-rod D is adapted to take up the drooping of the tail as the tightening of the nut at its end elevates the end of the tail to any desired height.

I prevent the tail from swingin g into a direct line with the shaft by means of the stop 0 on the arm d, which extends backward from the turn-table. Hence the wheel is never fully up in the wind, and its being thus slightly turned away insures a further deviation with an increase of wind sufficient to overcome the weight of the tail.

A stop, 6, is provided to prevent the tail from foldin g back so far that it would be brought to a position at right angles to the shaft, and therefore fail to act so as to return the wheel to the wind.

Heretofore the turn-tables of self-regulating windmills have been constructed with a very small base upon which to revolve, thereby preventing a full stroke of the crank being given directly to the connecting-rod, and various devices have been resorted to to give a vertical movement to the pump or connecting rod.

I construct my turn-table of sufficient size to insure a full stroke of the connecting-rod down through it, and it consists of a plate, G, having secured to it an upper ring or tube, H, connected by suitable bars or rods I I to a lower ring or tube, K, which rests upon and has its bearing in a step, L, which is let into the frame-work of the mill a short distance from the top thereof. The ring or tube H has its bearing in a sleeve, H, which is bolted to the upper part of the frame-work of the mill. To the plate G, I secure the boxes which carry the crank or shaft, and to which the tail is also hinged. T0 the tail I attach a rope, M, which is rove through a dead-eye on an arm of the turntable, and which I use to swing the tail into such a position as will throw the wheel out of the wind when it is desirable that the mill should not be operated.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

In a self-regulating windmill, the combina tion of the adjustable cranked hinge-pin B, the back-stay O, and the tail-rod D with the tail A, provided with the straps or loop-irons a b, constructed and operating substantially as and for the purpose specified.

In testimony that I claim the foregoing I have hereunto set my hand this 13th day of March, 1880.

ENOOH J. MARSTERS.

Witnesses:

J. M. Lone, JNO. H. WEBSTER. 

